Cancrum oris is a kind of gangrenous disease happening on the maxillofacial region. It is characterized by developing rapidly, high lethality and deforming rate. This article reported a case of maxillofacial deformity caused by cancrum oris, and discussed based on relevant literatures.
Humans ; Maxilla ; pathology ; Noma

Dentigerous cyst of maxilla is a rare disease in department of otorhinolaryngology. More than 2 week persistent infection of the cortex that is surrounded by dense bone and then begins absorption causing the formation of dentigerous cyst. One tooth germ or multiple tooth germs can be seen in the cysts, mostly in the third molar area and canine area. However, it is extremely rare that so huge dentigerous cyst of maxilla, in which include three additional teeth, that is why we report it.
Child ; Dentigerous Cyst ; Humans ; Male ; Maxilla ; pathology

Supernumerary teeth, which is described as teeth or tooth substance that develops in excess of deciduous and permanent teeth, most commonly involve the anterior maxilla. Mesiodens are one type of supernumerary teeth that develops in paramedian space of premaxilla. Sometimes mesiodens can be inverted with its crown facing the nasal cavity. Because of its own pathology and possible disruption of neighboring normal teeth, supernumerary teeth should be removed regardless of its eruption. We experienced two cases of mesiodens detected in the nasal floor and so report these cases with a review of literature.
Crowns ; Maxilla ; Nasal Cavity* ; Pathology ; Tooth ; Tooth, Supernumerary

In this report, an ameloblastoma case, which has been occurred on the left maxilla of a 10 year-old, male, German shepherd, was described on the clinical and morphological features. The mass with the dimensions of 5x2.5 cm was removed totally by maxillectomy and examined by radiography, magnetic resonance (MR) and biopsy. The tumor was histopathologically classified ameloblastoma of follicular type and in some fields showed acanthotic form. The invasiveness of the tumor was also observed to be high. This report is the first case of maxillary ameloblastoma in dogs in Turkey.
Ameloblastoma/*pathology/*veterinary ; Animals ; Dog Diseases/pathology ; Dogs ; Male ; Maxilla/pathology ; Maxillary Neoplasms/*pathology/*veterinary ; Neoplasm Invasiveness/pathology

The fibrous epulis, a common tumor-like lesion of the gingiva, appears in the interdental papilla as a result of local irritation. Lesions are asymptomatic and have a variable growth rate. A 75-year-old woman was referred for the evaluation of a large painless gingival mass. It had started 10 years back and has been increasing in size the last year. No bone involvement was noted. The tumor was totally removed by excision with surgical scalpel under local anesthesia without teeth extraction. The microscopic findings were suggestive of a fibrous epulis. Differential diagnosis, clinical considerations and factors to prevent recurrence are discussed.
Aged ; Diagnosis, Differential ; Female ; Fibrosis ; Follow-Up Studies ; Gingival Diseases ; pathology ; Gingival Hyperplasia ; pathology ; Humans ; Maxilla

OBJECTIVEThe aim of this experiment is to know whether active orthopedic appliance is rationale to do presurgical treatment and seek some regularities.

METHODSLaser scanning confocal microscopy and triple fluorochrome labeling in bone were used to observe and study detailed changes occurred in compressed suture systematically.

RESULTSWidened suture and broken fibres between the adjoining bones was observed at the 3rd week postoperatively. At the 3rd week hyperplasia of organic tissue components was also seen. At the 6 and 9th week there were no apparent differences among all groups no matter whether in control group or experimental groups.

CONCLUSIONRetarding injury of compressed suture and surrounding tissue hyperplasia exists. With growth and development wounded suture will gradually assimilate to control group structurally and functionally.

Animals ; Cranial Sutures ; pathology ; ultrastructure ; Female ; Hyperplasia ; Lasers ; Maxilla ; pathology ; ultrastructure ; Microscopy, Confocal ; Rabbits

A 55 year old man complained of a painless mass at the left maxillofacial region. The mass had continuously grown over 10 years. Upon physical examination a cystic mass with size of 5 cm in length with bulging smooth surface was seen on the left maxillofacial region. Computed tomography (CT) scan showed a giant cyst with bone destruction and invasion in the left maxilla, maxillary sinus and nasal cavity. Needle aspiration of the mass yielded 80 milliliter of brown fluid. The excisional biopsy was made which revealed ghost cells and dysplastic dentin that were features of dentinogenic ghost cell tumor. Finally, a dentinogenic ghost cell was diagnosed.
Cysts ; pathology ; Diagnosis, Differential ; Humans ; Male ; Maxilla ; Maxillary Sinus ; Middle Aged ; Odontogenic Tumors ; pathology

PURPOSE: Sinus elevation procedures have become a routine and reliable way to gain bone volume in the edentulous maxilla for dental implant placement. Presence of bony septations and pathology in the maxillary sinus often cause complications leading to graft or implant failure or both. The aim of this study was to retrospectively evaluate the prevalence of pathology, direction of the septa, and sinus width measured at 2 mm, 5 mm, and 10 mm from the sinus floor in maxillary sinuses using cone-beam computed tomography (CBCT). MATERIALS AND METHODS: Seventy-two sinuses from 36 random preoperative CBCT scans referred for implant therapy were retrospectively evaluated for the number, prevalence, and direction of bony septations and presence of pathology. Width of the sinus was also measured at 2 mm, 5 mm, and 10 mm from the sinus floor to account for the amount of bone available for implant placement. RESULTS: Maxillary sinus septa were found in 59.7%. Presence of a single septum was noted in 20 sinuses (27.7%), followed by two septa in 17 sinuses. The most common direction of the septum was the transverse direction. Retention pseudocyst and mucosal thickening were the most commonly seen abnormality/pathology. CONCLUSION: Based on the high prevalence of septa and sinus pathology in this sample, a preoperative CBCT scan might be helpful in minimizing complications during sinus augmentation procedures for dental implant therapy.
Cone-Beam Computed Tomography* ; Dental Implants ; Maxilla ; Maxillary Sinus* ; Pathology* ; Prevalence* ; Retrospective Studies* ; Transplants

Fistula ; complications ; surgery ; Humans ; Male ; Maxilla ; pathology ; Middle Aged ; Osteomyelitis ; complications ; surgery

OBJECTIVETo study the possibility of segmental maxillary regeneration by arced distraction osteogenesis of zygoma.

METHODSThe distraction of zygoma with the internal arced devices was performed in 2 dogs to simulate the reconstruction of maxillary defect. The zygoma was distracted about 12 mm, and the process of new bone formation was studied by histology and scanning electron microscopy.

RESULTSThe transport disk was distracted about 12 mm around the arc. After 8 weeks of consolidation, the density of new bone was close to that of normal bone.

CONCLUSIONSThe segmental maxillary regeneration by arced distraction osteogenesis of zygoma is possible.

Animals ; Bone Density ; Dogs ; Maxilla ; pathology ; surgery ; Osteogenesis, Distraction ; instrumentation ; methods ; Zygoma ; surgery